Aggrieved person means any participant, beneficiary, plan administrator, contributing sponsor of a single-employer plan or member of such a contributing sponsor's controlled group, plan sponsor of a multiemployer plan, or employer that is adversely affected by an initial determination of PBGC with respect to a pension plan in which such person has an interest. The term “beneficiary” includes an alternate payee (within the meaning of section 206(d)(3)(K) of ERISA) under a qualified domestic relations order (within the meaning of section 206(d)(3)(B) of ERISA).

Appeals Board means a board consisting of three PBGC officials. The Director will appoint a senior PBGC official to serve as Chairperson and three or more other PBGC officials to serve as regular Appeals Board members. The Chairperson will designate the three officials who will constitute the Appeals Board with respect to a case, provided that a person may not serve on the Appeals Board with respect to a case in which he or she made a decision regarding the merits of the determination being appealed. The Chairperson need not serve on the Appeals Board with respect to all cases.

Appellant means any person filing an appeal under subpart D of this part.

Director means the Director of any department of PBGC and includes the Director of PBGC, Deputy Directors, and the General Counsel.